1. Landforms

2. Bay
An area of water bordered by land on three sides

3. Gulf
A gulf is a part of the ocean (or sea) that is partly surrounded
by land (it is usually larger than a bay).

4. Peninsula
A peninsula is a piece of land that is bordered on three sides by
water.

5. Delta
Where the mouth of a river flows into an ocean, sea, lake or another river

6. Isthmus
A narrow strip of land that is bordered on two sides by water
and connects two larger land masses

7. Strait
A strait is a narrow body of water that connects two larger bodies
of water.

8. Lake
A lake is a large body of water surrounded by land
on all sides.

9. Mountain
A mountain is a landform that extends above the surrounding
terrain. A mountain is generally steeper than a hill

10. Hill
A hill is a raised area or mound of land.

11. Plain
Plains are flat lands that have only small changes in elevation.

12. Plateau
A plateau is a large, flat area of land that is higher than the
surrounding land. .

13. River
A river is a large, flowing body of water that usually empties into a
sea or ocean.

14. Waterfall
When a river falls off steeply, there is a waterfall.

15. Fjord
A fjord is a long, narrow sea inlet that is bordered by steep cliffs.

16. Valley
A valley is a low place between mountains.

17. Glacier
A glacier is a slowly moving river of ice.

18. Archipelago
group or chain of islands clustered together in a sea or ocean

19. Sea
A sea is a large body of salty water that is often connected to an
ocean. A sea may be partly or completely surrounded by land.

20. Ocean
An ocean is a large body of salt water that surrounds a continent.
Oceans cover more the two-thirds of the Earth's surface